package project.houseRentSystem;

/**
 * 显示界面
 * 接收用户输入
 * 调用 HouseService 完成对房屋信息的各种操作
 */
public class HouseView {

    private boolean loop = true;//控制显示菜单

    private char key = ' ';//接收用户选择

    private HouseService houseService = new HouseService(10);//设置数组大小为10

    //完成退出确认
    public void exit() {
        char c = Utility.readConfirmSelection();
        if (c == 'Y') {
            loop = false;
        }
    }

    //编写listHouses()显示房屋列表
    public void listHouses() {
        System.out.println("================房 屋 列 表================");
        System.out.println("编号\t\t房主\t\t电话\t\t地址\t\t月租\t\t状态(未出租/已出租)");
        House[] list = houseService.list();
        for (int i = 0; i < list.length; i++) {
            if(list[i] != null) {
                System.out.println(list[i].toString());
            } else {
                break;
            }
        }
        System.out.println("================房 屋 列 表 显 示 完 毕================");
    }

    public void findHouse() {
        System.out.println("================查 找 房 屋 信 息================");
        System.out.println("请输入要查找的id：");
        int findId = Utility.readInt();
        House house = houseService.findById(findId);
        if (house != null) {
            System.out.println(house.toString());
        } else {
            System.out.println("================查 找 房 屋 信 息 失 败================");
        }
    }

    //编写addHouse() 接收输入 创建House对象，调用add方法
    public void addHouse() {
        System.out.println("================添加房屋================");
        System.out.print("姓名：");
        String name = Utility.readString(8);
        System.out.print("电话：");
        String phone = Utility.readString(12);
        System.out.print("地址：");
        String address = Utility.readString(16);
        System.out.print("月租金：");
        int rent = Utility.readInt();
        System.out.print("状态：");
        String state = Utility.readString(3);

        //创建一个新的House对象，id是系统分配的，用户无法输入
        House house = new House(0, name, phone, address, rent, state);
        if (houseService.add(house)) {
            System.out.println("================添加房屋成功================");
        }else {
            System.out.println("================添加房屋失败================");
        }
    }

    public void updateHouse() {
        System.out.println("================修改房屋信息================");
        System.out.println("请选择待修改房间编号(-1退出):");
        int updateId = Utility.readInt();
        if (updateId == -1) {
            System.out.println("================放弃修改房屋信息================");
            return;
        }
        //根据updateId查找对象
        House house = houseService.findById(updateId);
        if (house == null) {
            System.out.println("================修改房屋信息编号不存在================");
        }

        System.out.println("姓名(" + house.getName() + "):");
        String name = Utility.readString(8, "");//如果用户直接回车表示不修改该信息
        if(!"".equals(name)) {
            house.setName(name);
        }

        System.out.println("电话(" + house.getPhone() + "):");
        String phone = Utility.readString(12, "");//如果用户直接回车表示不修改该信息
        if(!"".equals(phone)) {
            house.setPhone(phone);
        }

        System.out.println("地址(" + house.getAddress() + "):");
        String address = Utility.readString(18, "");//如果用户直接回车表示不修改该信息
        if(!"".equals(address)) {
            house.setAddress(address);
        }

        System.out.println("租金(" + house.getRentMoney() + "):");
        int rent = Utility.readInt(-1);//如果用户直接回车表示不修改该信息
        if(rent != -1) {
            house.setRentMoney(rent);
        }

        System.out.println("状态(" + house.getState() + "):");
        String state = Utility.readString(3, "");//如果用户直接回车表示不修改该信息
        if(!"".equals(state)) {
            house.setState(state);
        }

        System.out.println("================修改房屋信息成功================");
    }

    public void deleteHouse() {
        System.out.println("================删除房屋================");
        System.out.println("请选择待删除房屋编号(-1退出)：");
        int num = Utility.readInt();
        if (num == -1) {
            System.out.println("================放弃删除房屋信息================");
            return;
        }
        char key = Utility.readConfirmSelection();
        if (key == 'N') {
            System.out.println("================放弃删除房屋信息================");
            return;
        } else if (key == 'Y') {
            //执行删除操作
            boolean res = houseService.delete(num);
            if (!res) {
                System.out.println("================房屋编号不存在，删除失败================");
                return;
            }
        } else {
            System.out.println("输入有误，请重新输入");
        }
        System.out.println("================删除完成================");
    }

    public void mainMenu() {
        do {
            System.out.println("================房屋出租系统菜单================");
            System.out.println("\t\t\t1 新 增 房 源");
            System.out.println("\t\t\t2 查 找 房 屋");
            System.out.println("\t\t\t3 删 除 房 屋 信 息");
            System.out.println("\t\t\t4 修 改 房 屋 信 息");
            System.out.println("\t\t\t5 房 屋 列 表");
            System.out.println("\t\t\t6 退 出 系 统");
            System.out.println("请输入你的选择(1~6):");
            key = Utility.readChar();
            switch (key) {
                case '1':
                    addHouse();
                    break;
                case '2':
//                    System.out.println("\t\t\t2 查 找 房 屋");
                    findHouse();
                    break;
                case '3':
//                    System.out.println("\t\t\t3 删 除 房 屋 信 息");
                    deleteHouse();
                    break;
                case '4':
                    System.out.println("\t\t\t4 修 改 房 屋 信 息");
                    break;
                case '5':
//                    System.out.println("\t\t\t5 房 屋 列 表");
                    listHouses();
                    break;
                case '6':
//                    System.out.println("\t\t\t6 退 出 系 统");
                    exit();
                    break;
            }
        }while (loop);
    }

}
